
Concept explainers
Explain whether the sides of the frame are parallel.

Answer to Problem 22PPS
The sides of the frame are parallel.
Explanation of Solution
Given:
Each of the four pieces of framing material is cut at a
Calculation :
Draw the diagram:
When two
So, if we take any two sides , the third side acts as a transversal and the sum of the two consecutive interior
When a transversal intersects two lines , the two lines are parallel if and only if the sum of consecutive interior angles is
Hence, the sides of the frame will be parallel.
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Geometry, Student Edition
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